diff --git a/guix.scm b/guix.scm
index 9ecd3aa7f2de650c6458e623eea1222d2042ad86..9fd38725fe3fefa8cff8373c512b1b0afdf6b121 100644
--- a/guix.scm
+++ b/guix.scm
@@ -474,14 +474,14 @@ requests.")
 (define-public ruby-dhall
   (package
     (name "ruby-dhall")
-    (version "0.5.5")
+    (version "0.5.6")
     (source
       (origin
         (method url-fetch)
         (uri (rubygems-uri "dhall" version))
         (sha256
           (base32
-            "0kfiqhczacap9pywav727k53hwy755g1igwvpq6f5sc43irxvyj1"))))
+            "19ql595bfv7wgyw4s30r60zp5v58vk21gixzzda653g3p0cn94bn"))))
     (build-system ruby-build-system)
     (arguments
      ;; No test in gem archive